@article{10_4064_aa8354_6_2016,
     author = {Carl Pomerance and Lola Thompson and Andreas Weingartner},
     title = {On integers $n$ for which $X^n-1$ has a divisor of every degree},
     journal = {Acta Arithmetica},
     pages = {225--243},
     publisher = {mathdoc},
     volume = {175},
     number = {3},
     year = {2016},
     doi = {10.4064/aa8354-6-2016},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/aa8354-6-2016/}
}